Axle-box.



@ZL/JMM wawmy PATENTED JULY 30, 1907. L- BURG. AXLE BOX.

APPLIOATION FILED JUNE 28,1906.

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PATENT LOUIS BURG, OF DALLAS CITY, ILLINOIS.

AXLE-BOX.

Application filed June 28.

To all whom it may concern:

Be it known that I, LOUIS BURG, a citizen of the United States, residingat Dallas City, in the county I of Henderson and State of Illinois, haveinvented new and useful Improvements in Axle-Boxes, of which thefollowing is a specification.

My invention pertains to axle-boxes, more particularly axle-boxes of theball-bearing type; and it contemplates the provision ofan inexpensiveand practical axle-box of such construction that the axle is subjectedto but a minimum amount of friction, and there is no liability of thewheel being casually locked to the axle.

Other advantageous features peculiar to my invention will be fullyunderstood from the following description and claim when the same areread in con nection with the accompanying drawings, forming part of thisspecification, in which:

Figure 1 is a view partly in elevation and partly in longitudinalsection of an axle-box constituting one embodiment of my invention. Fig.2 is a transverse section taken in the plane indicated by the line 2-2of Fig. 1.

Referring by letter to the drawings: A is an axle having a spindle a andalso having a collar b at the inner end of the spindle and a reducedportion 0 at the outer end of the spindle; the outer part of the saidreduced portion 0 being threaded as indicated by d to receive a nut B.In the axle A or rather in the perimeter of the axle collar b isprovided a longitudinal key=seat 6 while in the inner smooth part of theend portion 0 is provided a longitudinal key-seat f.

C is a box mounted on the intermediate portion of the axle spindle a andhaving the usual fins g for fixing it in the hub of a wheel. At itsinner and outer ends the said box O is provided with circular grooves hand k of concave form in cross section designed to serve a purposepresently set forth.

D is an annular cup surrounding the inner portion of the spindle a andhaving an annular groove Z which in combination with the groove h in thebox 0 is designed to form a race for a plurality of anti-friction ballsE. The said cup D also has an outwardly extending flange m which extendsbeyond the balls E and surrounds the inner end of the box C, and aninwardly directed flange n which surrounds the axle collar b. In thislatter flange n is a longitudinal keyseat p which is designed to beregistered with the keyseat e of the axle to receive a longitudinal keyF. By virtue of this provision it will be apparent that the cup D isheld against rotation on the axle collar b and yet the said cup ispermitted to move on and with respect to the axle in the direction ofthe length Specification of Letters Patent.

Patented July 30, 1907.

1906- Serial No. 323,919.

thereof for an important purpose presently set forth. Between the cup Dand the collar b on the axle is interposed an elastic washer G, ofleather or other material suitable to the purpose, designed to cushionthe cup D against inward thrust and normally hold the said cup in theposition shown relative to the collar Z). I

With a view of retaining the balls E in the cup D as when the box G isremoved from the axle I provide the ball retainer H. This ball retaineris in the form of an annular plate of metal or other suitable material,and it is carried by and extends inward from the cup flange m. From thisit follows that the said retainer II will serve not only to retain theballs E in the cup D when the box C is removed from the axle, but willalso serve when the box 0 is in the position shown as a dust guard 6.,will lessen the liability of dust finding its way to the balls E and therace in which the same are movable.

M is a cup which surrounds the inner smooth part of the axle portion 0.This cup M is provided with a longitudinal key-seat 1 designed whenregistered with the key-seat f in the axle to receive a longitudinal keyN, and hence it will be apparent that the cup M is held against rotationon'the axle and yet is susceptible of Said cup M also has a groove sopposed to the groove 70 of box C so as to enable the cup to holdanti-friction balls P; and the cup M is further provided with aninwardly reaching flange t. This flange t carries a ball retainer Rwhich is similar in construction and functions to the ball retainer H ofthe cup D.

By virtue of the construction described in the foregoing it will be seenthat in the event of the nut B being turned up too much on the threadedend of the axle spindle, the washer G will serve as a cushion and permitinward movement of the cup M, box 0 and cup D,

- together with the parts carried thereby, and in that way willeffectually prevent locking of the parts which is an importantdesideratum. It will also be seen that the elasticity of the washer Gand the ability of the cups to move on the axle in the direction of thelength thereof will tend to prevent breaking or other injury of theparts in the event of sand, gravel or dirt finding their way into theraces in which the anti-friction balls are held and movable.

In addition to the practical advantages ascribed in the foregoing to thenovel axle-box, it will be observed that the said axle-box is simple andinexpensive in construction and that it reduces to a minimum thefriction imposed on the axle and in that way prolongs the usefulness ofthe axle for an indefinite period. It will also be observed that in theevent of either of the cups 1 or the axle-box G wearing out prematurely,the worn being moved in the direction of the length thereof.

part may be readily removed and as readily replaced with a new partwithout affecting the utility of the other parts of my improvements.

Having described my invention, what I claim and desire to secure byLetters-Patent is:

The combination of an axle having a spindle and a collar at the innerend of the spindle; the said spindle being threaded at its outer end andbeing provided adjacent to the thread with a longitudinal key seat, acup removably for yieldingly holding the cup against inward movement, anut mounted on the threaded end of the spindle, a cup arranged on thespindle at the inner side of the nut and having a longitudinal key seatarranged to be registered with that in the spindle, a key removablyarranged in said seats and retained in position by the nut, whereby thecup is held against rotation and yet is free to move endwise 0n thespindle, a box mounted on the spindle and arranged between the cups,anti-friction balls interposed between the inner cup and the inner endof the box, and anti-friction balls interposed between the outer cup andthe outer end of the box.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

LOUIS BURG.

Witnesses W. H. BLISS, CLAUDE J. Do'ry.

